1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa097ddae17d8264b12776131d2d6248b17740c6dbc4d766dfb6dc74161a21d2a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a336a310-3a49-43ae-b1bd-ba0f2f45e10c.json and https://artists.proofprofile.net/proofs/artist/a336a310-3a49-43ae-b1bd-ba0f2f45e10c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a47b3f1a6ec293d77cd64e27599d8dee51ac3997e0e31c3735220e5302e2d8. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ32013948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d724fd5187bd5a4a92bb543e0f68ed7f6a6358f0335c933d245c885410cd878. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:51:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ32013949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e356088e8956290539f0cd8e9cb6a174d2126d51ade2d5c9b2012e468d98cb1. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ32143830.
A Pesar de los Anos Sigo Siempre a Tu Lado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad52abca9056f0d138e93c3f648b5a9439ebd9572a955dc143b4150b0fc0427. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ32143829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc969bac3876ccc860d57ca7ebf719b8ac96f19ca0d37b91a0abbd540a5d6f199. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ32143817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b4e964f4bddff664cb9faa49f9e4bb54cdb23f4d4ce40a1cb776322e2d828d. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ32143826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfaee06c569aef62cecf814f0c6a8439d0cf54512c6cb93ca5c380993210a1cf. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ32143823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba80bc9c7c29acbb75ee29bc365b66777bb1a660b37d4f3a4ae9494ba16a469b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:07:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ32143808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a67d53f52b8cb92b7d3e3d8c2576be7534772fe435f70ceefc0b17b9f9b289b. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-20T00:23:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ32143811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de09ee6c276bfca1155d3332c84df580efdfc5a1102168e57837325dda0779e. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ32143828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea74fd12438192bbe83d94a738c2a45ea6d8cba665d68e332bfb430738d55bd1. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:34:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ32143825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a722ac55db1fded84891edb7332cbbcbc38b9e6a9236cddde0ff464708b45a. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ32143805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d7c4ed8f3812028bace3adc1334f24bc03bb8978a0cb04711f5dc89585c7be. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:42:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ32143818.
Dicen Que las Gallinas No Quieren Guerra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7170dab1c4704e772f2f643d55bb1f2234e7035881400fe3184ffb03e973f0a0. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ32143806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1db785fa29809260bed924923a18142881e26a59f2f96b78ac6c493d5a1dfdd. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ32143809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2cbb10b8c0aad75addfe7a4b02aef123a5c97e19c37fba7b49f94a6114ed07. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ32143819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x257f7433b5acbe93b0f203bdd72b9914d6f4c7d989dee4251f30249b9dc93623. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ32143810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c27f91a10dd3b468bf4aa7fec1a229a1304e6decf8a6f31aabd3ff6cfcb872. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ42185922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2daedf83a244996c4f312f97ed4b198a2ee2cc34a24fdfd3f4708464c74f789c. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ42185924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8955e4cac00382838beb614ed5303c4975f422d0cbd82d8754f14d6cc64db3fb. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ42185930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b6214fc753014238663c197e1e639beaceb4d222bd582358bbbae517238552. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ42185925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x461c34edd4a12bc1d0ae4a392cf3c9e569feda37efe516a80d3add51555a8a16. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ42185921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x874b89769e3e3a1f3fb890db6d7643dba8878d139fb74fa0478a9741e8941580. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ42185917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65720c5225ecfbc906abf7c14250c113d88d4fd0c427e89e585ab7106156aa35. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ42185929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ed37f27648c0bd73eaad689b7432f1d8adc785aaccd72215eb42d175126584. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ42185918.
Intimos de Sentimiento, Aliancistas de Corazón
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600cb6daa0889852adc5a585aede35b05ab5915116bf2577234acfbf93f062d2. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2341475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x322570b8ba3dcb852b37fbc30eb40386c19d9e0af496780340ba0e55b9971aed. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2341477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dcd6c22b01b4ebf3bd22d00f14259f70f057824e97484d6b150deafb7153bb7. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2341478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e2c4e38afd69e4e93a94344b79c1a82875828c567b115f62ddb7d0627fb1b30. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2341479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2337436d4091c2b58c8110f4b402e68011b161529bed94537bd839bb8b3466b3. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2341483.